I have had it for about a year, the doorbell is okay. It does not have any issues like I saw in the comments on Skroutz, where it disconnects and requires a factory reset. It is permanently connected to WiFi and I charge it once every 2-3 months. I would like to be able to adjust the volume of the doorbell separately from the sound on your Google Home/Nest. But I would not recommend it because it only saves events that happened 3 hours ago if you do not have a paid subscription, and the image quality is quite mediocre. Also, it takes a while to load the events that happen in real-time, meaning if I open it because I received a notification, it can freeze and take 2-3 minutes to see what it has saved.

Quite expensive for what it offers! It disconnects frequently, often appearing disabled on the app, which prevents me from viewing online or performing any actions through the application. To fix it, you have to do a factory reset, and if you have connected it with cables, you have to unplug them all. Also, it often happens that they press the doorbell and it doesn't ring. The other ones that cost 80 euros do the same job. I regret spending 200 euros on this

Very nice doorbell. I connected it to the 12V of the common power supply for the doorbells (which the old one was also connected to) so it doesn't use its battery. I removed the internal doorbell because when it rings, it hits the Google Mini in the house and I can hear it.
The connection with Google Home was very fast, although for some reason it didn't show me live feed unless the doorbell rang, which was resolved by deleting the device from my home in Google Home, doing a factory reset, and reconnecting the device to my Google Home.
The camera has great quality day and night.
Inside the packaging, there is also a 20-degree angle for the camera base, although it would be good to have a 45-degree angle as well, but the 20-degree angle makes a difference.
It records sound as well.
You can even talk through it.
It simply keeps the last 3 hours if you don't have a subscription, so if you don't have data, the notification to see who is at the door after 3 hours is lost.
You can download the recorded videos because without a subscription, they are lost after 3 hours, but with a 30-day subscription, they are stored in the cloud.
I am very satisfied so far and I highly recommend it 1000%.

If you are in the Google ecosystem, it is the best possible choice for greater and faster automation. There are 2 options: a) battery b) connection to an existing doorbell wiring so you don't need to charge it (once every 4 months on average depending on usage).

Very nice design, slightly lower resolution than the previous generation, but this is mainly done for local storage and processing instead of the cloud. The result is fast notifications (with short video in push notifications), immediate display of camera image on Google Nest Display, and easier navigation in the events history.

If you want more than 3 hours of history, you need to go with a Nest Aware package (you must declare a non-Greek address), which is a one-way street if you need nighttime recordings.

It only works through the Google Home app (no longer the Nest app), has settings for recording zones, sensitivities, motion detection, packages, people, animals, and vehicles, while there are also battery-saving scenarios.

If the doorbell is installed on a side wall compared to the door (common configuration in apartment buildings), you may need a greater tilt than the wedge included in the package, there are special Wasserstein products available online.

Finally, make sure before final installation that there is good wifi reception at that spot and it is not obstructed by a wall. I recommend placing some kind of extender near the device for faster response.

Overall, very satisfied after 2 weeks of use.

In case someone is looking for a good digital door "eye", I highly recommend it. The camera is crystal clear and has high resolution even in low-light conditions. It detects motion with the slightest movement, as well as recognizing cars, animals, and packages. Notifications come to your mobile in the form of small GIFs so you don't always have to check the app to see the entire snapshot. It can review up to 3 hours of historical video with the ability to download all videos to your mobile. The nest aware service is worth it, but it is NOT supported in Greece.

I give it 4 stars because the new version has lower resolution than the original Nest model. Other than that, the installation is extremely easy and the battery, in the one week that I have it, has only lost 5%, which means that the autonomy is not a problem. Of course, it also depends on how much "action" the camera sees. If, for example, you place it in a crowded place, then the battery will definitely last less.
Other than that, I am very satisfied, the integration with Google Home is excellent and the notifications come instantly.
In my opinion, anyone who buys cameras and doorbells from Google should pay the £5/month subscription to Nest, as this way they will have 24/7 recording in the cloud, as well as the other services (e.g. familiar faces, etc.).
To activate the Nest service in Greece, simply provide an address in England. It doesn't matter if it's not yours. It requires a little more research as it is not supported in Greece, but it works fine.